sysctl -qw vm.swappiness=1; sysctl -qw kernel.panic=1   # panic指崩溃后重启的时间，0表示不自动重启
sed -i '/vm\.swappiness/d; /kernel\.panic=/d' /etc/sysctl.conf
echo -e 'vm.swappiness=1\nkernel.panic=1' >> /etc/sysctl.conf
Eval_cont "egrep 'vm\.swap|panic' /etc/sysctl.conf"
